Update build-windows.yml

Author: felipealfonsog

.github/workflows/build-windows.yml

@@ -21,11 +21,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install pyinstaller
-
-      - name: Install requirements (if exists)
-        run: |
-          if exist requirements.txt (pip install -r requirements.txt)
-        shell: cmd
+          pip install PyQt5
 
       - name: Build exe with PyInstaller
         run: |